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Why the hell NOT...(8 posts)

Why the hell NOT...jrm
May 9, 2002 2:21 PM
Why is it that CX bikes cant have long and sloping TT's ala MTB's?. You could use short stems, Ride a large enough frame in order to stretch out on, and it would be more dirt worthy and ride better on the road?
re: Why the hell NOT...atpjunkie
May 9, 2002 3:23 PM
sloping TT's interfere with portage (carrying the bike) on some frames, there are only a few companies making semi-compact frames. some cx bikes do have longish TT's. My 57 Ridley has a 58 cm TT but you can't have it too long as your riding position in the drops (where the brake levers are) if you are too stretched out would put you too far forward for descending. Most cx bikes run short stems (90-110) that also put you more up (+ angle vs. roadie - angle) so you can descend better. So stretching out doesn't always make abike dirt worthy, MTB's are far less stretched in rider postion than roadies or cx, thats why you can haul on trails.
re: Would love to know who.jrm
May 12, 2002 1:39 PM
Is making semi-compact CX frame designs. For me to ride a frame that fits my upper torso i lose all SO. This is why im looking into smaller frames with 54 & 55cm TT's.
re: Would love to know who.atpjunkie
May 13, 2002 7:40 AM
I think the bianchis do okay with that. Also look into the empellas as they have nice SO and are fairly stretched out. Check their fit on
re: Would love to know who.The Walrus
May 13, 2002 2:07 PM
A 55cm Axis will give you a 55.5cm effective top tube, with 31.5" of SO at the center of the TT--it sure works for me.
re: Would love to know who.fredly
May 14, 2002 9:35 AM
Check out the TiCycles Steilacoom 'cross bike at
Well, now that you mention it...UTE
May 10, 2002 2:40 AM
I just ordered a custom Cross frame from Rick Hunter and he is putting together a frame that will resemble what you are describing. I asked to build me a trail bike with some road manners. I do not plan on racing cross, so the portage issue is moot for me. He is designing a Cross frame around a 72/73'sh geometry, a bit quick by MTb standards and slack by pure road standards. I asked for a sloping TT, ala my custom MTB and other options like am 1 1/8 head tube, 135mm rear dropout spacing, etc. I am really stoked about this rig. In fact, had i reflected further when I had my MTB made about 18 months ago, I would have likely just gone this route.
Well, now that you mention it...atpjunkie
May 10, 2002 11:53 AM
sounds like a fun rig. enjoy